Modulus Arms 80%

[Night-owl4194]

Hey guys, I'm relatively new to the site but I wanted to give you guys a little review on my 80% project.  They're jig is top notch, the lower is very well designed.  The only issue I ran into was with the integrated trigger guard.  I am a fan of the hyperfire edt triggers....I have a few of them in different platforms and in my opinion they're g2g.  Anyway, I had the edt3 all ready to go, it's a slight curved trigger with a more vertical bend at the bottom......the trigger bottomed out on the trigger guard.....So instead of modifying it I decided to take a look at the larue mbt-2.  I got the straight bow to try out and sure enough it bottomed out as well.  I ended up taking a decent amount of meat off the bottom of the trigger and now it functions great.  I have no mil-spec triggers to try but fairly confident they'd work fine in the lower....don't hold me to it tho.  All in all, that was the only hiccup I had.  I'm not advertising/marketing for the company but even when searching I haven't found that much info/reviews on them.  If asked my opinion.....I'd buy another without a doubt. 

[Armed Eye Doc]

Thanks for the review.  👍  That's how others learn.

What upper did you use?  Any problems with fitting the 2 together?

[Ravenworks]

Good review

Like Doc asked,what upper are you using?

I don't know if you know but they ripped off 5D Tactical for their jig.

Edited February 26, 2020 by Ravenworks

[Night-owl4194]

It's an aero m5 upper, fits tight.  Yea, no I didn't know that. Either way it's a great jig, quality tooling...i don't regret the purchase

[Armed Eye Doc]

4 hours ago, Night-owl4194 said:

It's an aero m5 upper, fits tight.

That's great info for others considering an 80% build.  To have some confirmation that your combo worked, gives a starting point.